Spark-arrester.



A. W. GRAHAM. SPARK ARRESTER. APPLICATION FILED 1122.11, 1911. 1 1,037,898. V v Patented se t. 10,1912.

2 SHEETS-SHEET 1.

WITNESSES COLUMBIA PLANOGRAPH 60., WASHINGTON. D. Q

A. W. GRAHAM! SPARK ARRESTER.

APPLICATION FILED APR.11, 1911. 1,037,898. Patented 881113.10, 1912.

2 SHEETSQSHEETZ.

INVENTOR I A Home COLUMBIA PLANOGRAMI $0 WASHINGTON, 1)- c4 UNITED STATES PATENTOFFICE.

ANDREW WALTER GRAHAM, OF BRADFORD, PENNSYLVANIA, ASSIGNOR. TWENTY- FOUR AND THREE-FOURTHS ONE-HUNDREDTHS TO RANSOM G. LANDON AND TWENTY-FOUR AND THREE-FOURTHS ONE-HUNDREDTHS TO JOHN G. MGCREA,

BOTH OF BRADFORD, PENNSYLVANIA.

SPARK-ARRESTER.

Specification of Letters Patent.

Patented Sept. 10, 1912.

To all whom it may concern:

Be it known that I, ANDREW WALTER GRAHAM, a citizen of the United States, residing at Bradford, in the county of Mc- Kean and State of Pennsylvania, have invented certain new and useful Improvements in Spark-Arresters, of which the following is a specification.

This invention relates to locomotives and has particular reference to a spark arrester such as is employed in the smoke box of engines of this character.

The principal object of the invention is to improve the general construction of devices of this description.

A second object of the invention is to provide a device of that character which will effectively break or pulverize the large cinders into such minute fragments that they will be readily consumed and extinguished before leaving the stack and thus be rendered incapable of doing harm by setting fire to combustibles adjacent the track.

' A third object of the invention is to pro.- vlide a device which will not be liable to 0 0g.

With the above and other objects in view the invention consists in general of certain novel features of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the claims.

In the accompanying drawings like characters ofreference refer to like parts in the several views, and Figure 1 is a transverse section through the smoke box of a locomotive showing the device in position therein. Fig. 2 is a similar longitudinal section through such a smoke box. Fig. 3 is top plan view of the device. Fig. 4 is a section on the line 4-4 of Fig. 3 through one of the sections of the spark arrester. Fig. 5 is a cross section through a portion of one of the battle plates employed in this invention. Fig. 6 is a face view of such a plate. Fi .7 is a horizontal section on the line 77 of ig. 4.

In the drawings there is illustrated a boiler 10 of the type commonly employed in locomotives. This boiler has in front of the water compartment a smoke box 11 and nozzles 12 project upwardly in this smoke box and are connected with the exhaust from the cylinders of the engine which are not deemed necessary hereto be shown. Resting on these nozzles or connected therewith is a housing 13 of polygonal form by preference and secured to this housing preferably consisting of a flat plate having a depending peripheral flange 13 by any suitable means, as by the bolts 14 are members 15 radiating from the conjoining angles of which are plates 16 which are so arranged that the plates from one side of the polygonal housing contact with the plates of adj acent sides of the housing, the adjacent plates being secured by fastening means such as indicated byethe bolts 17. Each of these v the inner edges of the plates 16 are bridged by vertically spaced members 18 which are preferably made of sheet metal and punched to provide openings19 surrounded by out- "wardly projecting teeth 20. The spaces betweenthe members 16 are bridged bya plurality of series of spaced but interlocking S-shaped members 21 each provided with apertures 22 formed by striking the metal without the possibility of clogging the deflanges 26 and radial flanges 27, the latter I ment of the spaced overlapping and interlocking of the baflies 21 are caused. to contact with and be acted upon by said baflies. And, furtherpthe baffles 18 at the rear of the compartments are so disposed that they act upon the products of combustion after leaving the baffles 21.

Having thus described the invention, What is claimed as new is 1. A spark arrester comprising a nozzle, a plurality of spaced panels surrounding the nozzle, and baflie plates connecting adj acent panels and provided with a plurality of openings that are surrounded by spark disintegrating teeth.

2. A spark arrester comprising an exhaust nozzle, a plurality of panels sur rounding the said nozzle and arranged radially, and baiile plates connecting adja- 1 cent panels andprovided with openings that are surrounded by spark disintegrating means. i

3. A spark arrester comprising an exhaust nozzle, a support mounted on the nozzle, a plurality of radiating panels carried by the support, a plurality of baiiie plates connecting adjacent panels, and ad-' ditional bafile plates connecting the inner.

edges of adjacent panel plates.

4. A spark arrester comprlsmg an exhaust nozzle, panels arranged 1n radial spaced relation and surrounding the nozzlef and battle plates connecting ad acent panels and provlded with cinder dlsintegrating means.

5. A spark arrester comprising an eX- haust nozzle, a series of spaced vertically disposed radial panels surrounding the nozzle, a plurality of baflie plates connecting adjacent panels and provided with spark disintegrating means.

6. A spark arrester comprising an exhaust nozzle, an inclosing structure therefor including a plurality of vertically arranged spaced radial panels, overlapping baffles connecting adjacent panels, and additional bafiles connecting the inner edges of adjacent panels.

7. In a spark arrester, an exhaust nozzle, a cinder retarding device surrounding said nozzle and including panels arranged in spaced relation, and a series of baflies between adjacent panels, said baifles being each provided with cinder disintegrating means comprising a multiplicity of openings surrounded by outwardly projecting teeth.

8. A spark arrester comprising an exhaust nozzle, and a cinder retarding and disintegrating device surrounding the same and including a series of vertically arranged radial panels, and a series of baffles connecting adjacent panels and provided with a multiplicity of openings surrounded by projecting teeth.

9. In a spark arrester, an. exhaust nozzle, a cinder retarding device surrounding said nozzle and including panels arranged in radial relation, and a series of battles between adjacent panels and each provided with spark disintegrating means.

10. In a spark arrester, an exhaust nozzle, a cinder retarding device surrounding said nozzle and including a nozzle engaging support,outward1y projecting panels spaced around and carried 'bv said support, a series of interlocking S-sha-ped spark disintegrating baflles between'adjacent panels, and additional spark disintegrating means between said panels. I

11. In a spark arrester, an exhaust nozzle, a cinder retarding device surrounding said nozzle and including outwardly projecting panels spaced around said retarding device, a series of interlocking s-shaped baflies between adjacent panels, and provided with spark disintegrating means and additional baiiies between the inner edges of adjacent panels and provided with spark disinte grating means, each of said spark disintegrating means comprising a multiplicity of openings surrounded by outwardly projecting teeth.

12. A spark arrester comprising a support, panels carried thereby and arranged to provide a plurality ofradiat-ing spark arresting compartments open at the front and rear, battle plates in each compartment and arranged to intercept incoming products of combustion, said plates being provided with spark disintegrating means, and baiiieplatesin the rear of said compartments' and provided with spark disintegrating means.

13. A spark arrester comprising a support, a plurality of radiating panels carried thereby and arranged to provide compartments that are open at the front and rear, a cover "for the compartments for directing the products of combustion to the rear thereof, a plurality of overlapping baffies in each compartment arranged in staggered relation and provided with spark disintegrating means, and a vertical row of spaced bafiies in the rear of the compartments and provided with spark disintegratmg means.

14. A spark arrester comprising a plurality of partition panels arranged to provide In testimony whereof I aflix my signature spark arresting compartments a plurality in presence of two witnesses.

of baflies in each compartment arranged to provide circuitous passages for the prod- ANDREW WALTER GRAHAM. nets of combustion said bafiies being provided with spark disintegrating means, and Witnesses:

bafiies in the rear of the compartments and L. N. ELLIS,

provided with spark disintegrating means. ALBERT POPKINS.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents,

Washington, D. C. 

